Fisheating Creek Campgrounds
Clear Sky Chart
History

This sumarizes the distribution of each different forecast outcome for the Fisheating Creek Campgrounds clear sky chart from 2005-11-05 to 2017-12-02.

This page is a summary of past forecasts. Even though it's based only on forecasts, some people use these pages as clue to a site's climate. But climate data based on actual observation should be preferred (if you can find it!).

Cloud, Transparency and Seeing forecasts are summarized individually. But because good observing conditions require a combination of minimum cloud cover, transparency and seeing, the individual forecast summaries can be difficult to interpret. The observing conditions section counts the combinations of conditions needed for common types of astronomical observation.

Observing Conditions

The following tables count the occurrence of the combinations of forecast and darkness conditions needed for different observations. Conditions are rated by by what percentage of the hours the observation would likely be attempted are usable.
Observation TypeMinimum conditions for hour to be usableOut of hours
Clear of CloudsTransparencySeeingSky Brightness
Planetary:50%(no limit)Average(no limit)Nighttime Hours
Deep Sky:70%Average(no limit)5.9Nighttime Hours
CCD Imaging:70%Below AveragePoor(no limit)Nighttime Hours

Percentages are of nighttime hours per month, or per year, when a particular observing conditions was met. Deep Sky percentages never exceed 50% because the moon is up half the time. Deep sky percentages are much lower for charts at high latitudes because of fewer dark hours in the summer.

Overall

PlanetaryData
Pts
Deep Sky
Max 60%
Data
Pts
Both Planetary and Deep Sky
Max 60%
Data
Pts
Either Planetary or Deep SkyData
Pts
CCD ImagingData
Pts
Night
63%
16377
19%
47846
16%
16338
66%
16338
29%
30526

By Month

MonthDays of MonthPlanetaryData
Pts
Deep Sky
Max 60%
Data
Pts
Both Planetary and Deep Sky
Max 60%
Data
Pts
Either Planetary or Deep SkyData
Pts
CCD ImagingData
Pts
January1st to 15thNight
55%
716
18%
2327
15%
716
60%
716
26%
1447
January16th to endNight
52%
768
25%
2433
20%
768
60%
768
31%
1434
February1st to 15thNight
51%
701
24%
2105
17%
698
58%
698
32%
1258
February16th to endNight
53%
631
29%
1791
18%
631
63%
631
39%
1018
March1st to 15thNight
55%
720
31%
1980
20%
720
64%
720
45%
1076
March16th to endNight
58%
768
27%
2112
22%
768
63%
768
42%
1205
April1st to 15thNight
65%
718
24%
1976
20%
718
68%
718
44%
1098
April16th to endNight
62%
720
28%
1842
17%
720
68%
720
42%
1095
May1st to 15thNight
71%
655
25%
1735
18%
655
74%
655
44%
1002
May16th to endNight
76%
561
20%
1682
16%
561
77%
561
33%
1040
June1st to 15thNight
67%
540
8%
1620
7%
540
67%
540
19%
1213
June16th to endNight
74%
540
8%
1620
7%
540
74%
540
21%
1191
July1st to 15thNight
71%
510
6%
1530
6%
510
71%
510
18%
1175
July16th to endNight
75%
564
6%
1595
7%
531
75%
531
21%
1185
August1st to 15thNight
77%
540
7%
1610
8%
537
77%
537
22%
1168
August16th to endNight
64%
764
6%
2093
6%
764
64%
764
16%
1611
September1st to 15thNight
62%
720
5%
1980
5%
720
62%
720
15%
1530
September16th to endNight
59%
717
7%
1980
8%
717
59%
717
16%
1522
October1st to 15thNight
68%
720
20%
2057
20%
720
70%
720
29%
1306
October16th to endNight
60%
768
23%
2304
23%
768
62%
768
29%
1428
November1st to 15thNight
66%
760
28%
2281
26%
760
72%
760
39%
1285
November16th to endNight
61%
780
29%
2340
26%
780
67%
780
34%
1378
December1st to 15thNight
60%
728
25%
2357
25%
728
65%
728
31%
1406
December16th to endNight
62%
768
23%
2496
23%
768
66%
768
31%
1455

Individual Forecasts

The length of each colored bar in the "occurrence of each Forecast" column is proportional to the number of times the chart forecast that color. The percentages are of the total number of hours per month, or per year, with a particular forecast. The colors as the same as those used in clear sky charts.

Note: Transparency probabilities are only counted for those hours that have 30% or less cloud cover. Seeing probabilities are only counted for those hours that have 80% or less cloud cover. If that's too tricky, try Observing Conditions instead.

Overall

Occurrence of each ForecastData
Points
Cloud CoverDay
8%5%37%7%46%6%6%8%34%
48585
Night
6%425%5%35%5%6%9%43%
48053
TransparencyDay
43%10%13%15%12%4
48286
Night
34%10%16%19%14%4
47856
SeeingDay
8%111%22%25%30%
6211
Night
8%216%33%29%10%
16387

By Month

Percentage Cloud Cover SE (2006-)
Color Meanings:
Overcast 90% covered 80% covered 70% covered 60% covered 50% covered 40% covered 30% covered 20% covered 10% covered Clear
MonthDays in MonthOccurrence of each ForecastData
Points
January1st to 15thDay
8%5%35%5%45%6%7%8%40%
1611
16th to endDay
9%4245%345%6%8%44%
1788
February1st to 15thDay
10%5%3443446%6%46%
1750
16th to endDay
6%4245%25%5%410%47%
1681
March1st to 15thDay
4225%5%45%46%8%50%
1980
16th to endDay
6%426%5%36%46%7%47%
2111
April1st to 15thDay
4325%6%46%6%7%7%44%
1972
16th to endDay
6%5%245%35%5%6%9%44%
2118
May1st to 15thDay
6%3245%35%6%6%9%45%
2223
16th to endDay
7%437%9%6%7%6%7%9%30%
2431
June1st to 15thDay
14%8%39%8%5%7%6%7%8%20%
2340
16th to endDay
9%7%49%9%5%9%7%7%8%21%
2340
July1st to 15thDay
9%7%48%9%6%9%7%7%8%20%
2340
16th to endDay
8%7%49%10%7%9%7%7%9%19%
2465
August1st to 15thDay
7%7%38%9%6%8%8%8%9%22%
2325
16th to endDay
9%8%410%9%6%9%7%7%7%19%
2106
September1st to 15thDay
7%7%410%11%5%7%7%6%10%20%
1980
16th to endDay
11%9%49%8%6%7%5%7%8%20%
1980
October1st to 15thDay
7%446%8%47%5%6%9%34%
1902
16th to endDay
9%5%25%6%45%5%6%8%39%
1920
November1st to 15thDay
6%425%5%25%5%6%8%46%
1907
16th to endDay
8%425%5%45%46%7%45%
1950
December1st to 15thDay
11%5%35%5%345%5%8%40%
1637
16th to endDay
5%425%5%35%6%7%10%42%
1728
January1st to 15thNight
8%5%25%5%36%46%9%40%
2327
16th to endNight
8%4245%345%6%8%45%
2433
February1st to 15thNight
9%5%2442435%8%47%
2103
16th to endNight
43244245%6%8%52%
1791
March1st to 15thNight
4213425%35%9%57%
1980
16th to endNight
3314325%5%5%8%54%
2112
April1st to 15thNight
421343446%8%56%
1976
16th to endNight
5%41242446%9%53%
1842
May1st to 15thNight
322443445%8%56%
1735
16th to endNight
6%3245%36%6%7%10%43%
1682
June1st to 15thNight
10%7%36%7%38%6%8%10%27%
1620
16th to endNight
6%6%27%6%46%7%8%12%30%
1620
July1st to 15thNight
8%5%37%7%46%7%8%10%29%
1620
16th to endNight
5%437%7%47%7%8%12%31%
1703
August1st to 15thNight
5%6%25%6%46%8%8%11%34%
1621
16th to endNight
10%5%26%8%5%6%6%8%11%28%
2093
September1st to 15thNight
7%6%38%7%5%8%7%8%11%26%
1980
16th to endNight
8%8%47%9%46%5%8%9%27%
1980
October1st to 15thNight
7%5%15%6%36%5%7%9%43%
2057
16th to endNight
10%5%245%345%5%8%45%
2304
November1st to 15thNight
5%424425%45%7%53%
2281
16th to endNight
7%5%2442445%8%49%
2340
December1st to 15thNight
7%4245%35%5%5%7%47%
2357
16th to endNight
5%5%245%35%5%6%8%47%
2496

Transparency (when cloud cover <= 30%)
Color Meanings:
Too cloudy to forecast Poor Below Average Average Above average Transparent
MonthDays in MonthOccurrence of each ForecastData
Points
January1st to 15thDay
39%8%9%19%18%4
1612
16th to endDay
35%6%8%20%21%7%
1788
February1st to 15thDay
35%49%18%19%12%
1752
16th to endDay
31%6%11%20%19%10%
1681
March1st to 15thDay
28%7%11%24%20%7%
1980
16th to endDay
32%7%10%21%19%8%
2112
April1st to 15thDay
33%8%13%21%18%5%
1972
16th to endDay
33%7%12%18%22%6%
2118
May1st to 15thDay
32%8%12%20%19%7%
2223
16th to endDay
44%12%13%16%12%
2435
June1st to 15thDay
58%11%14%12%3
2340
16th to endDay
55%14%16%11%2
2340
July1st to 15thDay
57%17%17%6%
2201
16th to endDay
56%14%19%9%
2310
August1st to 15thDay
51%15%24%7%
2312
16th to endDay
59%14%18%7%
2106
September1st to 15thDay
56%14%18%8%1
1980
16th to endDay
58%12%15%9%3
1980
October1st to 15thDay
43%9%12%15%14%3
1902
16th to endDay
40%6%11%13%17%9%
1920
November1st to 15thDay
33%6%9%21%20%8%
1907
16th to endDay
35%6%10%17%19%10%
1950
December1st to 15thDay
40%6%13%16%17%5%
1637
16th to endDay
33%8%14%20%17%6%
1728
January1st to 15thNight
38%7%13%20%15%4
2327
16th to endNight
33%6%11%23%18%6%
2433
February1st to 15thNight
34%5%8%19%21%11%
2112
16th to endNight
27%6%12%22%23%7%
1791
March1st to 15thNight
22%6%12%31%20%7%
1980
16th to endNight
25%6%14%25%20%7%
2112
April1st to 15thNight
22%7%16%29%16%6%
1976
16th to endNight
27%6%11%24%23%5%
1842
May1st to 15thNight
23%8%15%26%19%6%
1736
16th to endNight
31%10%19%23%15%
1684
June1st to 15thNight
47%12%20%14%4
1620
16th to endNight
40%16%24%13%4
1620
July1st to 15thNight
45%16%25%10%1
1530
16th to endNight
40%18%27%12%
1595
August1st to 15thNight
38%18%31%11%
1610
16th to endNight
45%19%24%10%
2093
September1st to 15thNight
47%17%21%11%1
1980
16th to endNight
48%15%19%12%3
1980
October1st to 15thNight
34%9%17%16%17%3
2057
16th to endNight
35%7%12%13%21%9%
2304
November1st to 15thNight
28%5%11%22%23%7%
2281
16th to endNight
31%6%9%21%20%10%
2340
December1st to 15thNight
34%6%12%24%16%5%
2357
16th to endNight
31%8%14%21%19%5%
2496

Seeing (when cloud cover <= 80%)
Color Meanings:
Too cloudy to forecast Bad 1/5 Poor 2/5 Average 3/5 Good 4/5 Excellent 5/5
MonthDays in MonthOccurrence of each ForecastData
Points
January1st to 15thDay
20%5%28%27%15%2
90
16th to endDay
15%9%30%28%11%5%
96
February1st to 15thDay
5%7%25%30%21%10%
90
16th to endDay
6%426%39%23%
182
March1st to 15thDay
3227%34%27%4
270
16th to endDay
5%418%31%34%4
288
April1st to 15thDay
3318%32%31%10%
270
16th to endDay
6%114%27%34%15%
270
May1st to 15thDay
7%18%22%34%25%
288
16th to endDay
5%5%19%31%36%
331
June1st to 15thDay
14%16%15%19%42%
315
16th to endDay
7%16%21%61%
315
July1st to 15thDay
6%6%17%67%
305
16th to endDay
8%211%16%60%
326
August1st to 15thDay
6%27%19%64%
313
16th to endDay
12%5%9%20%52%
332
September1st to 15thDay
7%1311%19%55%
315
16th to endDay
9%211%29%45%
314
October1st to 15thDay
7%9%28%34%18%
315
16th to endDay
11%121%29%24%11%
336
November1st to 15thDay
8%110%33%32%14%
325
16th to endDay
7%220%38%27%4
330
December1st to 15thDay
18%330%32%14%2
99
16th to endDay
4118%35%34%6%
96
January1st to 15thNight
9%5%22%39%21%1
720
16th to endNight
10%327%43%14%
768
February1st to 15thNight
11%326%42%13%
704
16th to endNight
7%328%47%12%
631
March1st to 15thNight
5%331%42%15%
720
16th to endNight
4226%47%18%
768
April1st to 15thNight
5%222%48%21%
718
16th to endNight
7%221%45%22%
720
May1st to 15thNight
414%47%30%2
656
16th to endNight
5%7%37%39%8%
563
June1st to 15thNight
10%25%21%44%16%
540
16th to endNight
7%213%44%31%
540
July1st to 15thNight
7%28%45%36%
510
16th to endNight
427%42%42%
564
August1st to 15thNight
6%29%42%39%
540
16th to endNight
13%1412%37%31%
764
September1st to 15thNight
10%5%13%42%27%
720
16th to endNight
12%6%18%43%18%
717
October1st to 15thNight
10%8%36%36%7%
720
16th to endNight
13%116%33%30%5%
768
November1st to 15thNight
6%117%41%29%2
760
16th to endNight
8%222%42%22%1
780
December1st to 15thNight
8%320%41%25%1
728
16th to endNight
7%221%39%26%2
768
Page generated at 2017-12-03 11:16:42. Version ac04

Copyright 2017 A. Danko


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